LED display screen

Abstract

The application provides an LED display screen, which comprises a bottom shell, a support, a lamp panel, a positioning member and a mask. In order to realize the rapid positioning of the lamp panel and the support, cylindrical positioning protrusions arranged in a matrix are arranged on a bearing platform of the support, and corresponding first positioning holes matched with the positioning protrusions are arranged on the lamp panel. When the positioning protrusions are inserted into the first positioning holes, the lamp panel can be accurately positioned at a preset position of the support. In order to further improve the assembly precision of the mask, a plurality of second positioning holes are arranged on the surface of the lamp panel. The first end of the positioning member is connected with the second positioning holes, and the second end of the positioning member protrudes from the lamp panel. The mask is provided with mounting holes, and the second end of the positioning member is inserted into the mounting holes, so that the mask is mounted on the lamp panel. Through the primary positioning between the support and the lamp panel and the secondary positioning between the lamp panel and the mask, a two-stage precise positioning structure is formed, the accumulated error problem existing in the traditional assembly process is effectively solved, and the precision and efficiency of the display screen assembly are significantly improved.

Description

Technical Field

[0001] This application belongs to the field of display technology, and more specifically, relates to an LED display screen. Background Technology

[0002] Currently, common outdoor LED display cabinet modules on the market often suffer from installation difficulties or inaccurate positioning during mask assembly. The main reason is insufficient precision in the fit between the positioning posts on the bottom shell and the mask. As the pixel pitch of LED displays continues to shrink and the LED beads become more densely packed, the gap between the mask and the LED board also decreases. This makes even minor deviations during assembly highly susceptible to inaccurate mask installation, or even interference with the LED beads. Furthermore, temperature variations and mechanical vibrations in outdoor environments can further exacerbate the misalignment between the positioning posts and the mask, leading to loosening of the mask or damage to the LED beads after prolonged use, affecting the overall stability and display effect of the display. Utility Model Content

[0003] The purpose of this application is to provide an LED display screen to solve the technical problems of difficult mask assembly and low positioning accuracy in the prior art.

[0004] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0005] An LED display screen is provided, comprising:

[0006] Bottom shell;

[0007] The bracket is installed on the bottom shell;

[0008] The lamp panel has multiple positioning protrusions on one of the bracket and the lamp panel, and a corresponding first positioning hole on the other of the bracket and the lamp panel. The positioning protrusions are inserted into the first positioning hole so that the lamp panel is mounted on the bracket. The lamp panel also has a second positioning hole.

[0009] The positioning component has a first end connected to the second positioning hole and a second end protruding from the lamp plate.

[0010] The face mask has a mounting hole, and the second end of the positioning member is inserted into the mounting hole so that the face mask is mounted on the lamp plate.

[0011] As a further improvement to the above technical solution:

[0012] Optionally, the positioning member includes a first protruding post, a flange, and a second protruding post arranged sequentially along the axial direction. The first protruding post is connected to the second positioning hole, the flange abuts against the surface of the lamp panel, and the second protruding post is inserted into the mounting hole.

[0013] Optionally, the diameter of the flange portion is larger than the diameters of the first protruding portion and the second protruding portion, and also larger than the diameter of the second positioning hole.

[0014] Optionally, the positioning element is a copper positioning element.

[0015] Optionally, there may be multiple positioning elements, which are arranged at intervals from each other.

[0016] Optionally, the mask has a light-transmitting hole for the light from the LED beads to pass through, and the lamp plate also has a mating protrusion that is inserted into the corresponding light-transmitting hole so that the mask is mounted on the lamp plate.

[0017] Optionally, the mating protrusions are located at the edge or corner of the lamp panel, and the number of the mating protrusions is multiple and less than the number of the light-transmitting holes.

[0018] Optionally, the positioning protrusion includes a base and a protrusion, the diameter of the protrusion is smaller than the diameter of the base, the protrusion is inserted into the first positioning hole, and the bracket or the lamp plate abuts against the top surface of the base.

[0019] The beneficial effects of the LED display screen provided in this application are as follows:

[0020] The LED display screen provided in this application includes a base shell, a bracket, a lamp board, positioning components, and a faceplate. To achieve rapid positioning of the lamp board and the bracket, a matrix of cylindrical positioning protrusions is provided on the support platform of the bracket, and corresponding first positioning holes are provided on the lamp board. When the positioning protrusions are inserted into the first positioning holes, the lamp board can accurately fall into the preset position of the bracket. To further improve the assembly accuracy of the faceplate, multiple second positioning holes are also provided on the surface of the lamp board. The first end of the positioning component can be connected to the second positioning hole, while the second end of the positioning component protrudes from the lamp board. The faceplate has mounting holes, and the second end of the positioning component is inserted into the mounting holes to mount the faceplate onto the lamp board.

[0021] By establishing a primary positioning between the bracket and the lamp board, and a secondary positioning between the lamp board and the mask, a two-stage precision positioning structure is formed, which effectively solves the problem of accumulated errors in the traditional assembly process and significantly improves the accuracy and efficiency of display assembly. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 An exploded view of the LED display screen provided in this application;

[0024] Figure 2 for Figure 1 A magnified schematic diagram of the local structure;

[0025] Figure 3 This is a partially enlarged structural schematic diagram of the LED display screen provided in this application;

[0026] Figure 4 A three-dimensional structural diagram of the positioning component provided in this application.

[0027] The following are the labeling elements in the figure:

[0028] 1. Bottom shell;

[0029] 2. Bracket;

[0030] 3. Light panel; 31. Second positioning hole; 32. Butt joint protrusion;

[0031] 4. Positioning protrusion;

[0032] 5. First positioning hole;

[0033] 6. Positioning component; 61. First protruding part; 62. Flange part; 63. Second protruding part;

[0034] 7. Face mask; 71. Mounting hole; 72. Light transmission hole. Detailed Implementation

[0035] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0036] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of this utility model.

[0041] In the following description, suffixes such as "circuit," "component," "assembly," or "unit" are used only for the purpose of describing this utility model and have no specific meaning in themselves. Therefore, they can be used in combination.

[0042] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0043] To solve the technical problem of insufficient mask positioning accuracy during LED display assembly, such as Figures 1 to 4 As shown, this application provides an LED display screen, including a base shell 1, a bracket 2, a lamp board 3, a positioning component 6, and a face mask 7.

[0044] The base shell 1, serving as the basic support structure for the display screen, is made of die-cast aluminum alloy and features reinforcing ribs on its surface for heat dissipation and weight reduction. The bracket 2, made of high-strength engineering plastic injection molding, is fixed to the mounting surface of the base shell 1 by fasteners and has a support platform on its surface for mounting the LED panel. The LED panel 3, as the core component of the display, consists of a printed circuit board and an array of LED beads, with a driver IC and signal interface on its back.

[0045] To achieve rapid positioning of the lamp panel 3 and the bracket 2, a matrix of cylindrical positioning protrusions 4 are provided on the support platform of the bracket 2, and a matching first positioning hole 5 is provided on the lamp panel 3. When the positioning protrusion 4 is inserted into the first positioning hole 5, the lamp panel 3 can be accurately positioned in the preset position of the bracket 2.

[0046] To further improve the assembly accuracy of the face mask 7, the surface of the lamp plate 3 is also provided with multiple second positioning holes 31. The first end of the positioning member 6 can be connected to the second positioning hole 31, and the second end of the positioning member 6 protrudes from the lamp plate 3. The face mask 7 has a mounting hole 71, and the second end of the positioning member 6 is inserted into the mounting hole 71 so that the face mask 7 is mounted on the lamp plate 3.

[0047] By establishing a primary positioning between the bracket 2 and the lamp board 3, and a secondary positioning between the lamp board 3 and the mask 7, a two-stage precision positioning structure is formed, which effectively solves the problem of cumulative error in the traditional assembly process and significantly improves the accuracy and efficiency of display assembly.

[0048] like Figure 4 As shown in a specific embodiment of this application, the positioning component 6 adopts an integrally formed stepped shaft structure, including a first protruding post 61, a flange 62, and a second protruding post 63 arranged sequentially along the axial direction. The diameter of the first protruding post 61 matches the second positioning hole 31 on the lamp plate 3, and it is fixed in the hole by interference fit or welding. The flange 62 has an annular disc structure, and its lower end face forms a surface contact with the upper surface of the lamp plate 3. The diameter of the second protruding post 63 is slightly smaller than the mounting hole 71 of the mask 7, and the two adopt a clearance fit to facilitate guiding and positioning during assembly. This stepped structure design enables the positioning component 6 to achieve precise positioning while effectively limiting the relative displacement between the mask 7 and the lamp plate 3, ensuring the structural stability after assembly.

[0049] like Figure 4As shown, in a specific embodiment of this application, the radial dimension of the flange portion 62 of the positioning member 6 is simultaneously larger than the diameters of the first protruding post portion 61 and the second protruding post portion 63, and exceeds the diameter range of the second positioning hole 31 on the lamp plate 3. This ensures that the flange portion 62 can completely cover the edge of the opening of the second positioning hole 31, forming a reliable limiting effect during assembly. When the first protruding post portion 61 is inserted into the second positioning hole 31, the lower surface of the flange portion 62 fits tightly against the upper surface of the lamp plate 3, effectively preventing the positioning member 6 from being excessively pressed into the lamp plate 3, while providing a stable support reference surface for the subsequent installation of the face mask 7. This dimensional fit ensures positioning accuracy and avoids damage to the surface of the lamp plate 3 during assembly.

[0050] In one specific embodiment of this application, the positioning element 6 is made of copper. Copper has excellent thermal conductivity, which can quickly conduct the heat generated by the lamp board 3 during operation to the mask 7, and effectively dissipate heat through the mask 7. This avoids the performance degradation caused by excessively high local temperatures during long-term operation of the LED display screen. At the same time, the mechanical strength of copper ensures that the positioning element 6 maintains stable positioning accuracy during long-term use. The combination of thermal conductivity and mechanical positioning function of the copper positioning element 6 achieves an optimized balance between heat dissipation performance and structural reliability.

[0051] In one specific embodiment of this application, there are multiple positioning elements 6, which are evenly spaced on the lamp plate 3 to effectively balance the installation stress of the mask 7, prevent mask deformation caused by excessive local stress, and ensure that the assembly gap between the mask 7 and the lamp plate 3 is uniform. Using multiple positioning elements 6 improves the positioning accuracy and assembly stability of the mask 7, making it particularly suitable for the assembly requirements of large-size LED displays.

[0052] like Figure 1 and Figure 2 As shown, in one specific embodiment of this application, the mask 7 is provided with a light-transmitting hole 72 corresponding to the position of the LED beads on the lamp board 3. The diameter of the light-transmitting hole 72 is slightly larger than the diameter of the LED beads to ensure sufficient light transmission and to prevent interference with the LED beads. The surface of the lamp board 3 is also provided with a mating protrusion 32, which forms a transition fit with the light-transmitting hole 72. After the positioning member 6 guides the mask 7 to initial positioning, the mating protrusion 32 is inserted into the light-transmitting hole 72 to achieve secondary positioning. This dual positioning structure effectively controls the assembly tolerance between the mask 7 and the lamp board 3, ensuring that the light-transmitting hole 72 and the optical axis of the LED beads are precisely aligned.

[0053] like Figure 1 and Figure 2As shown, in one specific embodiment of this application, the mating protrusions 32 are mainly distributed at the four corners or the middle of the long side of the lamp plate 3, and their number is much less than the number of light-transmitting holes 72. Specifically, 4-8 mating protrusions 32 are provided on a standard-sized lamp plate 3. This arrangement ensures the installation stability of the mask 7 and avoids the influence of too many mating protrusions 32 on the optical performance of the light-transmitting holes 72, thus maximizing the integrity of the light-transmitting area of ​​the mask 7 while ensuring positioning accuracy.

[0054] like Figure 1 and Figure 2 As shown, in a specific embodiment of this application, the positioning protrusion 4 adopts a stepped structure, including a base and a protrusion. The base is a cylindrical structure with a larger diameter, and its top surface forms a planar contact with the mounting surface of the bracket 2 or the lamp panel 3; the protrusion is a cylindrical structure with a smaller diameter, and its outer diameter forms a transition fit with the first positioning hole 5. When the protrusion is inserted into the first positioning hole 5, the top surface of the base is tightly fitted with the mounting surface of the bracket 2 or the lamp panel 3, which not only ensures the guiding accuracy during assembly, but also effectively disperses the assembly stress through the supporting effect of the base.

[0055] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An LED display screen, characterized in that, include: Bottom shell (1); The bracket (2) is installed on the bottom shell (1); The lamp plate (3) has multiple positioning protrusions (4) on one of the bracket (2) and the lamp plate (3), and the other of the bracket (2) and the lamp plate (3) has a corresponding first positioning hole (5). The positioning protrusions (4) are inserted into the first positioning hole (5) so that the lamp plate (3) is mounted on the bracket (2); the lamp plate (3) also has a second positioning hole (31). The positioning component (6) has a first end connected to the second positioning hole (31) and a second end protruding from the lamp plate (3). The face mask (7) has a mounting hole (71) into which the second end of the positioning member (6) is inserted so that the face mask (7) is mounted on the lamp plate (3).

2. The LED display screen as described in claim 1, characterized in that, The positioning component (6) includes a first protruding post (61), a flange (62) and a second protruding post (63) arranged sequentially along the axial direction. The first protruding post (61) is connected to the second positioning hole (31), the flange (62) abuts against the surface of the lamp plate (3), and the second protruding post (63) is inserted into the mounting hole (71).

3. The LED display screen as described in claim 2, characterized in that, The diameter of the flange portion (62) is greater than the diameters of the first protruding post portion (61) and the second protruding post portion (63), and is also greater than the diameter of the second positioning hole (31).

4. The LED display screen as described in claim 2, characterized in that, The positioning element (6) is a copper positioning element.

5. The LED display screen as described in claim 2, characterized in that, The number of the positioning elements (6) is multiple, and the positioning elements (6) are arranged at intervals from each other.

6. The LED display screen as described in claim 1, characterized in that, The mask (7) has a light-transmitting hole (72) for the light of the lamp beads to pass through, and the lamp plate (3) also has a mating protrusion (32). The mating protrusion (32) is inserted into the corresponding light-transmitting hole (72) so that the mask (7) is installed on the lamp plate (3).

7. The LED display screen as described in claim 6, characterized in that, The mating protrusions (32) are located at the edge or corner of the lamp plate (3). There are multiple mating protrusions (32), which are fewer than the number of light-transmitting holes (72).

8. The LED display screen according to any one of claims 1 to 7, characterized in that, The positioning protrusion (4) includes a base and a protrusion. The diameter of the protrusion is smaller than the diameter of the base. The protrusion is inserted into the first positioning hole (5). The bracket (2) or the lamp plate (3) abuts against the top surface of the base.

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